Lock for pivoted window-sash.



A. C. TAYLOR. LOCK FOR PIVOTED WINDOW SASH. APPLICATION FILED JUNE 8. 1917. RENEWED JUNE 4.

Patented Jan. 21, 1919.

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III ii llll III UNITED STATES PATENT OFFICE.

AIKEN C. TAYLOR, OF RICHMOND, VIRGINIA, ASSIGNOR TO EMANUEL I. SUMMERFIELID,

OF NORFOLK, VIRGINIA.

LOOK FOR PIVOTED WINDOW-SASH.

Specification of Letters Patent.

Patented Jan. 21, 1919.

Application filed June 8, 1917, Serial No. 173,591. Renewed June 4, 1918. Serial No. 238,218.

To all whom it may concern:

Be it known that I, AIKEN G. TAYLOR, a citizen of the United States, residin at Richmond, in the county of Henrico, tate of Virginia, have invented certain new and useful Improvements in Looks for Pivoted Window-Sash; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a lock for a pivoted window sash.

An object of the invention resides in the provision of a lock which will automatically lock the window sash in its normal or vertical position, which may be manually operated to permit the window to swing into an angular position and which will be automatically returned to its initial or locking position by the sash during its movement to its angular position.

A further object of the invention resides in so constructing the device that it may be embedded in the sash.

A still further object of the invention resides in the provision of a lock which is simple and cheap to manufacture and which may be readily installed.

' An additional object of the invention is to provide a particular lock which when in its active position will prevent rattling of the sash.

With these and other objects in view, such as will appear as my description progresses, my invention comprises the combination and arrangement of parts as set forth in and falling within the scope of the appended claims.

In the drawing:

Figure 1 is a horizontal sectional view taken through the locking lug and showing the same in its retracted position;

Fig. 2 is a perspective view looking at the rear of the locking device and showing the same in position on the sash, a portion of the latter being broken away however, and

Fig. 3 is a vertical sectional view with the lug in its retracted position.

In the drawing I have illustrated a portion of a window frame and sash of the type illustrated in the aforementioned application, the sash being indicated by the character 1 and the framebeing indicated by the character 2. Mounted on the frame 2 is a guide strip 3 which engages with a sash strip 4 which latter is carried by the sash 1. The guide strip is provided with a flange 5 while the sash strip is provided with a channel 6 into which the flange 5 extends when the sash is in its vertical position. The sash 1 is provided with a chamber 7 which is located beneath the sash strip. Secured to the sash strip, at 8, within the chamber 7 is a leaf spring 9 which extends vertically and on the upper end of which a lug 10 is formed which lug is adapted to project through an opening 11 in the sash strip and is provided with a cam face 12 and an abrupt face 13, the abrupt face being located adjacent to the channel 6. A rod 14 is mounted on the inner face of the sash strip in a bearing 15 and extends between the spring 9 and the sash strip. The outer end of this rod is mounted in a cut-out portion of the sash and is provided with an operating handle 16. This rod 14 has an extending cam plate 17 which is located between the spring 9 and the sash strip. On the inner end of the rod 1 1 a cam finger 18 is formed, which finger is provided with a cam face 19 which diverges from the cam face 12 on the lug 10. This cam finger 18 is arranged adjacent to and adaptedto project through an opening 20 in the sash strip.

In using the look when the sash is in its vertical position the guide strip 3 will be engaged by the abrupt face 13 of-the lug 10 so that the flange 5 will be held within the channel 6 and the sash will be locked in its vertical or closed position.

When it is desired, however, to release the sash so that it may be swung to an angular position the handle 16 is turned at which time the cam plate 17 will be moved so that it will extend at right angles to the sash strip and the cam finger 18 will be projected through the opening 20. The contacting of the said cam finger with the lower edge of the opening 20 arrests the movement of the plate 17 in the proper position. This plate 17 in its movement acts against the Spring 9 and retracts the lug 10 so that it is located within the chamber 7 and does not project from the sash strip. After the lug 10 has been retracted as before described, the sash may be swung to an angular position and in its movement to such position the guide strip will engage the cam face 19 of the cam finger 18 so that this finger will be moved inwardly through the opening 20. The in ward movement of this finger 18 will cause the plate 17 to move at an acute angle to the spring 9 and the action of this spring will return the lug 10 to its initial position, that is to say, to a position where it projects through the opening 11. WVhen the sash is returned to its initial or vertical position the edge of the flange 5 on the guide strip 3 will engage the cam face 12 of the lug 10 so that the lug will be moved inwardly and the flange will be permitted to pass to its position within the groove 6. Immediately upon the passing of the flange the spring 9 will project the lug outwardly and lock the sash in its vertical position.

It will thus be seen that I have provided a very simple and eflicient lock for the pur pose specified, which look will positively lock the sash in its normal closed or vertical position and which may be manually operated to permit the opening of the sash and which will be automatically returned to a locking position upon the swinging of the sash to its angular or open position.

It will be noted upon reference to Fig. 1 that the lug 10 is so positioned that when projected it will engage against the inner side face of the strip 3 and thus prevent the sash from rattling.

While I have illustrated and described a particular embodiment of my invention, it has merely been for the sake of convenience and I do not wish to be limited to that particular embodiment as it is obvious that numerous changes may be made in the details of construction without departing from the .spirit of the invention or exceeding the scope of the appended claims.

What I claim is:

1. Ina lock for pivoted sash, the combination with a strip having an opening, of a flat spring secured to the strip and having a lug disposed to normally project through the opening under the influence of the spring, means for retracting and holding the lug retracted and separate automatically actuating means for rendering the retracting means inoperative.

2. The combination with a strip having a pair of openings therein, of a flat spring secured thereto, a lug carried by the spring in position to project at times under the in fiuence of the spring through one of the openings, means for moving and holding the spring with the lug retracted, said moving means having connected therewith means disposed to project through the second opening when the lug is retracted for engagement to shift the retracting means into inactive position. I

3. The combination with a. window frame and a sash movable therein, of a. sprin pressed lug carried by the sash and disposed to engage at times the frame and lock the sash thereto when the sash is in a corresponding predetermined position with respect to the frame, means for holding the lug in out of locking position and means for rendering the holding means inactive, the last named means being disposed for operation upon movement of the sash with respect to the frame to unlocked position.

4. In a locking device, the combination with a strip, of a flat spring secured thereto, a locking lug on one end of the spring arranged to extend normally through an opening in the strip, a rod extendingtransversely of the strip, a cam plate on the rod disposed to engage and retract the spring and its lug whenthe rod is moved in one direction, and a cam finger on the rod arranged for-movement to project beyond the plate when the rod with its cam-plate is in position to retract the spring and its lug, for engagement to throw the rod and cam plate out of retract ing position.

5. In a locking device, the combination with a strip, of a flat spring secured thereto, a lug on one end of the spring and arranged to extend through the opening in the strip, a rod extending transversely of the strip, a cam plate on the rod located between the spring and strip and a finger carried bythe rod and arranged to contact with the stripand limit the movement of the cam plate in one direction.

6. A sash lock including a slidable locking bolt, a retraction cam for said bolt, means for actuating said cam, a spring for maintaining said bolt in its projected position and for maintaining the cam in both its active and its inactive positions interchangeably, and means carried by the cam actuating means, for automatically moving the cam actuating means from actuating position, and movable of itself into position for actuation when thecam actuating mechanism is moved to actuating position. 7

7. The combination with a window sash and supporting members to which it is connected for movement into and out of a pre-' determined position with respect thereto, of a latch for holding the sash in such predetermined position, means for disengaging the latch, at which time the sash is movable from its predetermined position with respect to the support and means operable by said movement for returning the latch to its active position.

8. In a closure, the combination with 'a movable or active member and a second or passive member with respect to which it is movable, of a latch carried by one member and adapted to engage the other member and hold them' against such :movement, means for retracting and holding-the latch in inactive position and means operable by 1 0 movement of the members with respect to each other for rendering the retracting and holding mechanism inactive.

9. In a Window sash, the combination with the side stile and the supporting member with respect to which the side stile is pivotally movable, said stile and supporting mem her being formed for interlocking engagement, of a latch disposed to hold the stile and support against correlative movement, means for moving and holding the latch out holding means.

Witnesses AIKEN C. TAYLOR.

of its active position and means including a member in the path of correlative movement of the stile and support for releasing said In testimony whereof, I afiix my signature, in the presence of two Witnesses.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

wsshlngton, D. 0. 

